Licensed business items: Training of crew and pilots; Road cargo transportation (excluding dangerous goods); Import and export of goods under state trading management (licensed business items subject to license approval). General business items: Manufacture of recreational boats and sports boats; Sales of recreational boats and sports boats; Ship leasing; Manufacture of metal ships; Sales of ships; Manufacture of marine auxiliary equipment; Manufacture of pumps and vacuum equipment; Sales of pumps and vacuum equipment; Manufacture of general-purpose equipment (excluding special equipment manufacturing); Sales of fishing gear; General cargo warehousing services (excluding items requiring approval such as hazardous chemicals); Wholesale of hardware products; Retail of hardware products; Labor services (excluding labor dispatch); Sales of lubricating oils; Manufacture of specialized chemical products (excluding hazardous chemicals); Sales of specialized chemical products (excluding hazardous chemicals); Sales of petroleum products (excluding hazardous chemicals); Manufacture of batteries; Sales of batteries; Research and development of emerging energy technologies; Production of refractory materials; Sales of refractory materials; Sales of fireproof sealing materials; Production of fireproof sealing materials; Research and development of new material technologies; Manufacture of hand carts and animal-drawn vehicles (public announcement).